Primitive War is an engaging military sci-fi adventure game that merges the intense atmosphere of the Vietnam War with the thrilling presence of dinosaurs. Players step into a secret, isolated jungle valley where they encounter not only a rival Soviet unit but also genetically engineered and time-displaced dinosaurs. The primary mission revolves around a search and rescue operation for a missing Green Beret platoon, leading to a tense struggle for survival against both human and prehistoric threats. With hostile creatures like Deinonychus and T-Rexes lurking in the jungle, players must navigate a dangerous environment to succeed.

The game is based on a series of novels by Ethan Pettus and has expanded into a universe that includes a film adaptation and a miniatures game. In this immersive experience, players can choose to control either American soldiers or their Soviet counterparts, making strategic decisions that affect the outcome of their survival. The blend of military tactics and prehistoric challenges offers a unique gameplay experience that stands out in the adventure genre.